{ "id": "math/9808080", "version": "v1", "published": "1998-08-17T21:03:36.000Z", "updated": "1998-08-17T21:03:36.000Z", "title": "The Enumeration of Permutations With a Prescribed Number of ``Forbidden'' Patterns", "authors": [ "John Noonan", "Doron Zeilberger" ], "comment": "AMSTeX", "journal": "Advances in Applied Mathematics 17 (1996), 381-407", "categories": [ "math.CO" ], "abstract": "We initiate a general approach for the fast enumeration of permutations with a prescribed number of occurrences of `forbidden' patterns, that seems to indicate that the enumerating sequence is always P-recursive. We illustrate the method completely in terms of the patterns `abc',`cab' and `abcd'.", "revisions": [ { "version": "v1", "updated": "1998-08-17T21:03:36.000Z" } ], "analyses": { "keywords": [ "prescribed number", "permutations", "general approach", "fast enumeration", "occurrences" ], "tags": [ "journal article" ], "note": { "typesetting": "AMS-TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1998math......8080N" } } }